Concrete mold or form



T. DE LA MARE CONCRETE MOLD OR FORMy Filed Feb. 23. 1921 2 Sheets-Sheet l 34 f, Z l 4/ 3,9 Il c, 0' s' 5f f Y Z9 5J l f y Z3 0 i; f 55 o 4Z 3g 32 y 4 Jjo 0:

35 JJ o 5 Q 0? ff f@- 3 f 56 5? 47 7 67 o o 52 f/ 4 a J5 Q e V I 9^/ o -W o0 y 43 56 Witnesss i, Inventor May Z9, H923.

T. DE LA MARE CONCRETE MOLD 0R ,FORM

1921 2 Sheets-Sheet 2 Filed Feb. 25.

girls] d' Inventor Attornieys Patented May 29,' 192.3.

Ul( TTS THOMAS DE LA MARE, OF TOOELE, UTAH.'

CONCRETE MOLD OR FORM.

lapplication led February 23, 1921. Serial No. 447,203'.

To all whom if; may concern.'

Be it known that I, THOMAS DE LA MARE, a citizen of the United States, residing at Tooele, in the county of Tooele and State of Utah, have invented a new and useful Concrete Mold or Form, of which the following is a specification.

The present invention appertains to concrete molds, or forms, and is particularly an improvement over the conduit mold disclosed in my Patent No. 1,118,558, issued November 2/1, 19111.

One of the objects of the present invention is the provision of a mold or form of novel construction, which ena-bles different shapes of conduits or culverts to be molded with comparative ease and dispatch, the` contrivance embodying a core, and` novel means for movably supporting it within the trench or ditch, whereby the core can be readily moved step by step over the completed bottom of the conduit or culvert, to enable the sides and top of the conduit or culvert to be completed in sections, similar to that disclosed in the said patent supra.

Another object of the invention is the provision of an appliance for molding conduits and culverts of different contours, and having bottoms properly shaped according to the angle of inclination of the conduit or culvert.

The invention also includes improved details of construction7 to enhance the utility and efliciency of the structure. n

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangementv of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can he made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the acc0m` panying drawings, wherein Figure 1 is a perspective view of the 1nvention as in use, portions being broken away, and this view illustrating how a change from a round or concaved bottom is made to an angular or V-shaped bottom. i

Figure 2 is an enlarged sectional detail taken on the line 2-2 of Figure 1.

Figure 3 is an enlarged sectional detail taken on the line 3 3 of Figure 1.

Figure eis an enlarged fragmental de- K tion thereover.

tail, portions being brokenaway, illustratmg one of the stays and one of the hubs of the toggle links. j

Figure 5 is a sectional detail taken on the line 5-,5 of Figure 4.

Figure 6 is a sectional detail of the lower portion of the core showing the guide or keel plate and a pair of rollers between which it is movable.

Figure 7 is an enlarged sectional detail of the cap or top plate of the core and the C0196,- i

Figure 8 is an end View of the'bottom part over which the core is movable, this part being used for forming a rounded or concaved bottom.

Figure 9 is an end view of thc bottom part used for making an angular or V-shaped bottom.

Figure 10 is a view similar to Figure 9, illustrating the bottom part in position for a flat bottom.

Figure 11 is an end view of a modified form of bottom part used in constructing an egg-shaped conduit or culvert.

The chief part of the structure is the core 1 which is of the same general construction and function as the core disclosed in the above mentioned patent, although thepresent core has improved details of construc- The present core is contractible, and is split longitudinally with the split or open portion at the top. The core embodies a pair of opposite sheet metal side sections 2 of arcuate cross section which have their upper edges projecting toward one another, and their lower edges projecting downwardly. The core 1 also embodies a. pair of opposite sheet metal vbottom sections or plates 3 of arcuate cross section having their lower edges projecting toward one another, and their upper longitudinal edges projecting upwardly adjacent the lower longitudinal edges of the sections or plates 2. The meeting or adjacent edges of the respective sections 23 at the opposite sides of the coreA are attached together, and to this end longitudinal angle irons 1 are riveted, bolted or otherwise secured to the inner sides of the sections 2 slightly above the lower longitudinal edges thereof, and longitudinal` angle irons 5 are riveted, bolted or otherwise secured to the inner sides of the sections 3 flush with the upper edges thereof, The inwardly projecting flanges of the angle irons 4 andy 5 are bolted or otherwise del tions 235 and thev capor top plate 14 is provided adjaf aregs'ecured together by means of longitu- `,dinal angle `irons 8 riveted, bolted orotherwise secured upon the adjacent edge portions ,of the Vsections 3, and having their upstanding anges secured together by lmeans of bolts 9orr the like. yThe sections 2 and 3v are thussecurely fastened together, the upper edgesof the sections 2 being spaced apart and detached whereby the core is splitat the vtop, toenablethe core to vexpandand con- `tractVthe sections thereof being flexible kor resilient.

The core is expandedand contracted in approximately 4the same manner as is the `core .disclosed in .the said patent. Thus, hubs 10 within the ends of the core are connected bytoggle links `11 with the sections means isprovided for moving the hubs 10 toward and away from oneanother whereby the toggle links willxpand and contract the core `as desired. This means maybe of the nature illustrated in said patent, and as illustrated in the present case is like that illustrated in Figure 4 of saidfpiatent. A rod 12 is thread- .ed through tlieliubs'lO and is provided at ,one end ,withahandle 13 whereby when the .rod ,12is rotated, the hubs 1() are moved to- ',ward or away from one another to accom `plish Itheexpansion or contraction of the core.

A cap or topfplate 14 of arcuate cross sec vtion hasitslongitudinal edge portions overlapping,

` to closey the opening therebetween,

.cent 'itsends with depending handles 15,

,whereby the cap plate cairbe readily haii- .,dled. An arcuate angle iron 16 has one j `flantf'geriveted or otherwise secured upon one .end ofthe cap 1,4. 'and has its other flange Jprojecting upwardly and provided witha longitudinal series of notches 17, the terminals, of` heangle iron 16 y,projecting downwardly so 4as to overlap the sections v2, as

clearly illustrated in Figure 1. The notchesl :are Iforthe reception of longitudinal're- *inf y ifciiig rods v18 disposed vabove the core.`

`The cope/19 is'of practically the same convstrificti'on as the cope. illustrated in said ,*patenuuanld need not be considered in deftfail.` 'lvlliejclosed'or flangedendof the cope .19 is l'seated upon the reinforcing rods 18 agalnstthe upstand'ing flange ofthe angle QironflG, tand ythe other end'iof the copeisy .seated upontlie'last completedsection of the conduit or culvert, 'as described in said "piatyforks 24 straddling the .ing of lthe vsides ofthecore,

the upper edge portions of the secstays 27 tion. Radial stays `22 are ldisposed* between v I tlie ribs 2O and rod which lis disposed axially ofthe core,` the outerreiids of the` stays 22 having forks 23 straddling'the ribs20, and the inner ends l'of the stays 22 having rod 12, whereby the ribs 20 are `supported properly above vthe rod12.

The rod 12 is supportedabove the bottom of the core 'in a somewhat similar manner tliatthe top of the core is supported above the rod12, ,and tothis end vpairsf'of arcuate angle irons or ribs '20' are seated iipon the sections 3 ofthe core yat the opposite sides of the angle i" ons 8 and radial stays 22l`are disposedbetween the ribs'20f yand rod `12, the sainey las vrbetween j The stays 22 below and above the rod "12 thus properly vsupportthe 'top of the core.

In order toprevent the spreading or separationr of the sides o f the core, transverse chains 25 Aare terminally vengaged with-suitablebolts 6 of the ,angle irons l1---5, andare 4provided with suitablej take up-Y devices 26 or the like,jso"that the chains 25 will normally be taut toprevent' the separa-tion orspread- The lcore is'l .also 'reinforced by .chordal stays 27 arranged in an inclined position above the rod'12, the lower endso-f thel stays 27 being attached to suitable'bolts ofthe angleirons 4-5,`and the upper ends of the ,being bolted or otherwise attached to the longitudinalangle irons 28's`ecured to the inner sides of the sections '2 between the upper and lower edgesthereof.`

By the provision of thell'foregoing devices within the core, the core is vrendered thoroughly substantial construction, `even though the core be of comparatively `large ldiameter for'molding a'large conduit 'oreillvert. Y

` A longitudinal'p'vertical plate29 is clamped between theangle irons 8, andprojects below the bottom of the core, said :plate providing a guide orkeel plate which is useful ,for thepiirpose hereinafter pointed out. A chain or vflexible element 30 is attached to one -end ofthe plate'29, Iand this chain 'can-be pulled manuallyor by the assistancel 'of a` winch yor `other 'de/vice, when the core vis moved' longitudinally from onepositionto the next. 1'

" The core may be used by'itse'lfwhenaicon- 2 and cap plate 14, and the the Vsaid rodfand vribs l20.

duit or culvert of circular cross section is .made, as disclosed inthe above mentionedv patent. When a conduit or culvert of elhphinged to the adjacent longitudinal edges'lof the sections 32-34 by means of hinges 35. The sections or plates 32, 33 and 34 are of arcuate cross section, and the part 31 is of` The lower or` arcuate or concaved'shape. adjacent edges of the sections 32 are secured rigidly together by means of longitudinal anglel irons 36 secured in any suitable manner upon the adjacent edge portions of the sections 32, and having their upstanding flanges bolted or otherwise secured together, as at 37. The upper edges of the upper or remote sections 34 rest against the sides of the core, and the lower or adjacent sections 32 are spaced below the bottom of the core, whereby the bottom part 31 will form with the core 1, an elliptical mold. The depending flanges 7 overlap the outer sides of the sections 34, whereby the part 31 and core 1 will be properly assembled, the core 1 being movable upon the part 31. Thus, a series of the parts 31 may be disposed upon the bottom ofy the conduit or culvert. and the core 1 can be slid longitudinally fromone part 31 yto the vother as the sides and top portions of the conduit or culvert are completed step by step, as indicated in the above mentionedy patent.

In order to enable the core 1 to'be moved easily upon the bottom part 31,?one or more arcuate rods 38 are disposed within the part 31, and have their ends attached, as at 39, to the sections 34,y whereby the rod 38 is supported abovev the sections 32 and 33. A pair of rollers 40 is mounted for rotation upon the intermediate'portion of the rod 38, and other rollers 41 are mounted for rotation upon the said rod between the intermediate and end portions thereof. The rollers 40 and 41 are held in place/by means of collars 42 secured upon' the rod. y-The core 1 is radapted to rest upon the rollersAv 40v and 41,

whereby the rollers enable the core to be moved easily over the part 31. The rollers may be supported in various manners within the part 31 so as to properly contact with the bottom portion of the core.

When an `angular or V-shaped bottomr is required, a bottom part 43 is employed, the' same embodying adjacent longitudinal bottom sections or plates 44 andhaving their remote edges hinged, as `at 45, tothe adjacent edges oi longitudinal bottom sections or plates 46. The bottom part 43 also embodies lower side sections or plates 47 above the remote edges of the sections 46, and whichhave their upper edges hinged, as at 48, tothe lower edges of upper sidesections 0r plates 49. Angle irons 50 are .rivet-, ed or otherwise secured upon the adjacent' end portions of the sections 44, and are connected by bolt-s 51 to securely fasten the sections 44 together, and angle `irons 52`are riveted, bolted or othewise secured to the lower edge portions of the sections 47 and y have flanges overhanging the remote edges of the sections 46. The said flanges of the angle irons 52 are connectedxby bolts 53 with the remote edge portions' of the sections 46whe1'eby the sections46 and 47" are attached together. The core 1 is adapted to move within the part 43, the same as within the part 31, and the depending flanges 7 of the core are adapted to pass over the upper edges of the part 43 or sections 49 thereof.

` Rollers lare also mounted within the bottom part 43 for supporting the core movably, and to this end, a V-shaped rod 54 has its terminals attached, as at 55, to the sections` 47, and rollers 56 and l57 are mounted for rotation upon the rod 54, said rollers being heldin place by means of collars 58 secured upon said rods. The rollers 57 are arranged in a pair adjacent one another, whereby the guide plate 29 ofthe core will pass between the rollers 57 to assist in guiding'the core, land to prevent the accidental rotation thereof. The plate 29 also'v passes between the rollersl 40 for the same reasons when the core is within the bottom part 31. A pair of inclined rods 59 have their upper or'remote ends connected, as at'60, tothe sections49, andthe lower or adjacent ends of the rods 59 are attached, as at 61,- upon .the sections 44, rollers 62'` being mounted upon the rods 59 for movably supporting the `core,'s`aid rollers 62 being heldin place by means of collars 63 upon the rods 59. It will therefore be apparent that the rollers may be supported in various manners within the bottom parts.

Figure 1 illustrates the apparatus in use, and shows both of the bottom parts 31 and v43 in use for making a change in the contour of the conduit or culvert. The apparatus is used within a ditch or trench 64 which has beenl dug, and sufficient concrete is placed in the bottom of the trench to form the bottom of the conduit; As illustrated, the bottom of the conduit is rounded or concaved, as at 65, and is of angular or V-shaped form -at 66. The bottom part 31 is fitted upon the portion 65 and the bot- Y 

